Improvement in door-keys



WILLIAM H.

Stimmt Wee ANDREWS, OF NEW HAVEN, CONNECTICUT, ASSIGNOR -TO BURTON MALLORY, OFSAME PLACE.

Letters Patent No. 88,113, dated Mfr/rch 23,1869.

IMPROVEMENT IN DOOR-KEYS.

To all whom fit may concern Beit known that I, WILLLIM H. ANDREWS, ofNew Haven, in the county of N ew Haven, and State of Connecticut, haveinvented a new Improvement in Door- Keys; and I do `hereby declare thefollowing, when taken in connection with the accompanyingdrawings,

andthe lettersof reference marked thereon, to be a of the key when it isremoved from the lock, for the convenience ofthe person carrying the key;l and 'Ihejn'vention consists in forming the bit upon the shank, orspindle, i'n the usual manner, the said spindle being about half theusual length, and into the back of 'the said spindle I cut a groovelongitudinally, and into the outer end of thegrooveI pivot a handle,formed from metal, so as to turn over and set into the groove cut in theback. This handleJ turned from the groove outward, extends'the key-t thelength required, and,

when closed, contracts the key, so 'as to reduce it to about half itsusual length.

In order to the clear understanding of my invention, I will fullydescribe the same, as illustrated in the accompanying drawings.

A is the bit of the key,fixed', 0r formed upon a spindie, B, in theusual manner, the said spindle being about half the usual length. I thengroove the spindle upon its back, as seen in fig. 2, to about the depthdenoted by the'broken line in fig. 3.

Into the outer end of this groove I hinge, or pivot an extension, C, thesaid extension being of suchform that it will fold into the back of thespindle, as seen in figs. lv and 2, and so as to be easily turnedtherefrom, to extend the key, as seen in iig. 3.

In its contracted state it becomes a little larger than the commondoorfkey; but extended, it' is of the usual length of keys of thisclass.

I do not broadly claim a key constructed so as to fold within a case,orhandle, as such, I'amaware, is not new, and may be ifound in thedrawings in the patent of T. A. Anberlin,J April 17, 1866.

Having fully described my invention,

What I claim as new and useful, 'and desire to secure by Letters Patent,is-

A door-key, consisting of the bit A, and'spindle B, hinged thereto, thesaid spindle being grooved, so as toreceive the extension O, the Wholeconstructed so as to operate substantially as set forth.

WM. H. ANDREWS.-

